1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DanielleElmas [232]
3 years ago
8

How do I solve this equation? 4-y/5=2-2y/8

Mathematics
2 answers:
Aliun [14]3 years ago
8 0

y=−40

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4−y5=2−2y8

4+−15y=2+−14y

−15y+4=−14y+2

Step 2: Add 1/4y to both sides.

−15y+4+14y=−14y+2+14y

120y+4=2

Step 3: Subtract 4 from both sides.

120y+4−4=2−4

120y=−2

Step 4: Multiply both sides by 20.

20*(120y)=(20)*(−2)

Answer:

y=−40

PtichkaEL [24]3 years ago
3 0

Answer:

y= -40

Step-by-step explanation:

4 - y/5 = 2 - 2y/8

4 - y/5 = 2 - y/4

4 x 20 - y x 20/5 = 2 x 20 - y x 20/4 (reduce the fractions)

4 x 20 - 4y = 2 x 20 - 5y

80 - 4y = 2 x 20 - 5y

80 - 4y = 40 - 5y

-4y + 5y = 40 - 80

y = 40 - 80

y = - 40

You might be interested in
Find the area of a circle with the diameter of 3 centimeters. Use 3.14 for pi ().
wlad13 [49]

Answer:

7.065 sq. cm

Step-by-step explanation:

Diameter= 3 cm

Since 2r=d, the radius is 1.5 cm

Circle area formula:

πr^2 --> 3.14(r^2)

Plug in r:

A=3.14(1.5^2)

A=3.14(2.25)

A=7.065

3 0
3 years ago
Solve for each variable.
dem82 [27]

Answer:

a = 38⁰

b = 54⁰

c = 54⁰

Step-by-step explanation:

a + 142⁰ = 180⁰ because a straight line = 180⁰

b + 38⁰ + 88⁰ = 180⁰ because the angles of a triangle equal 180⁰, and the missing measurement = 38⁰ because it is a vertical angle to angle a

c + 88⁰ = 142⁰ because the angles are corresponding angles

5 0
3 years ago
If 2x − 4(x + 1) = −12, evaluate x2 − 1.
Vlad [161]
2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4

2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15
6 0
3 years ago
A data set consists of the following data points:
aleksley [76]
<span>(3,5),
(5,8),
(6,13)
------
(14,26)/3
 
then use the point slope form of a line to find equation of line

</span>y-y_1=m(x-x_1)&#10;\\y -  \frac{26}{3}  = 2.5(x- \frac{14}{3})&#10;\\y -  \frac{26}{3}  =  \frac{5}{2} (x- \frac{14}{3})&#10;\\y -  \frac{26}{3}  =  \frac{5}{2} x-  \frac{5}{2}\times\frac{14}{3}&#10;\\y -  \frac{26}{3}  =  \frac{5}{2} x-  \frac{35}{3}&#10;\\6y-52=15x-70&#10;\\15x-6y-18=0
<span>
Find y-intercept for x = 0.

</span>15x-6y-18=0&#10;\\15\times0-6y-18=0&#10;\\-6y=18&#10;\\y=-3<span>

</span>
4 0
3 years ago
HELP! WILL MARK BRAINLIEST IF CORRECT!
mariarad [96]
I think it’s 25???? i tried haha
8 0
3 years ago
Other questions:
  • Solve for x.<br><br> −32&gt;−5+9x
    7·2 answers
  • Sandi tracks her calories burned during water aerobics class. The number of calories she burns is expressed by the function c(t)
    5·1 answer
  • What does 4x+12x equal
    9·2 answers
  • Henry has to wrap five presents
    11·1 answer
  • Liz solved the equation 6y+17.94=0. her solution was y= 2.99
    11·1 answer
  • Whats The common denominator fractions for 1/2 and 1/4
    6·2 answers
  • Jessica has collected bead all
    13·1 answer
  • How do I solve -2x &gt; 6
    9·1 answer
  • Jenny bought 4 DVD's for $25.20. What was the unit rate?
    14·2 answers
  • Drag the tiles to the correct boxes to complete the pairs.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!